AU7811287A - Roof supports - Google Patents
Roof supportsInfo
- Publication number
- AU7811287A AU7811287A AU78112/87A AU7811287A AU7811287A AU 7811287 A AU7811287 A AU 7811287A AU 78112/87 A AU78112/87 A AU 78112/87A AU 7811287 A AU7811287 A AU 7811287A AU 7811287 A AU7811287 A AU 7811287A
- Authority
- AU
- Australia
- Prior art keywords
- roof supports
- roof
- supports
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
- E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
- E21D23/0039—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member and supported by a strut or by a row of struts parallel to the working face
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Pivots And Pivotal Connections (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
- Braking Arrangements (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3630579 | 1986-09-09 | ||
DE3630579A DE3630579C2 (en) | 1986-09-09 | 1986-09-09 | Shield removal frame with a detachable top section between the threshold and the handlebars |
Publications (2)
Publication Number | Publication Date |
---|---|
AU7811287A true AU7811287A (en) | 1988-03-17 |
AU591424B2 AU591424B2 (en) | 1989-11-30 |
Family
ID=6309165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU78112/87A Ceased AU591424B2 (en) | 1986-09-09 | 1987-09-07 | Roof supports |
Country Status (4)
Country | Link |
---|---|
US (1) | US4815898A (en) |
AU (1) | AU591424B2 (en) |
DE (1) | DE3630579C2 (en) |
FR (1) | FR2603655B1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3843964A1 (en) * | 1988-12-24 | 1990-06-28 | Bochumer Eisen Heintzmann | Shield-type support assembly |
DE19528378C1 (en) * | 1995-08-02 | 1996-11-28 | Dbt Gmbh | Hydraulic shield extension frame for long-fronted coal face structure |
DE10328286B4 (en) | 2003-06-23 | 2015-05-13 | Caterpillar Global Mining Europe Gmbh | Hydraulic shield removal |
CN101526004B (en) * | 2009-04-09 | 2012-03-28 | 山东科技大学 | Large inclination-angle low-position top coal hydraulic bracket |
CN102207001B (en) * | 2010-03-31 | 2013-08-07 | 三一重型装备有限公司 | Testing device for pillar socket structure of hydraulic support |
CN102182477B (en) * | 2011-04-07 | 2013-01-09 | 中国神华能源股份有限公司 | Mining method for mechanized mining working surface end and corresponding end support bracket |
DE202013100048U1 (en) | 2013-01-07 | 2013-01-30 | Maschinenfabrik Glückauf GmbH & Co. KG | Hydraulic shield removal |
CN107130989A (en) * | 2017-05-12 | 2017-09-05 | 河南理工大学矿山开发设计研究所 | Hydraulic support of top-coal saving face puts coal method |
CN109838265B (en) * | 2019-03-18 | 2024-04-02 | 中国矿业大学 | Device for protecting roof tray during migration of gob-side entry retaining end bracket |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2246745C2 (en) * | 1972-09-22 | 1974-03-07 | Bochumer Eisenhuette Heintzmann & Co, 4630 Bochum | Retractable shield extension unit |
AU528146B2 (en) * | 1977-12-29 | 1983-04-14 | Gewerkschaft Eisenhutte Westfalia Gmbh | Mine roof support |
DE2841190A1 (en) * | 1978-09-22 | 1980-04-03 | Thyssen Industrie | SHIELD EXTENSION RACK FOR USE IN UNDERGROUND PIT OPERATION, WITH LEMNIS CATHEME HANDLEBAR |
DE2843857C2 (en) * | 1978-10-07 | 1986-06-19 | Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum | Shield support frame |
SU900004A1 (en) * | 1980-05-07 | 1982-01-23 | Подмосковный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт | Power roof support unit |
AU540670B2 (en) * | 1980-11-28 | 1984-11-29 | Dowty Mining Equipment Ltd. | Mine roof support |
DE3306585A1 (en) * | 1983-02-25 | 1984-09-06 | Bochumer Eisenhütte Heintzmann GmbH & Co KG, 4630 Bochum | Powered support assembly |
GB2143271B (en) * | 1983-07-12 | 1986-08-06 | Dowty Mining Equipment Ltd | Mine roof support with tilting cantilever to canopy |
DE3519904C2 (en) * | 1984-10-27 | 1986-09-25 | Siegfried Dipl.-Ing. 4600 Dortmund Sell | Shield extension |
DE3517347A1 (en) * | 1985-05-14 | 1986-11-20 | Gewerkschaft Eisenhütte Westfalia GmbH, 4670 Lünen | Stope support, in particular shield stope support, with fissure covering |
-
1986
- 1986-09-09 DE DE3630579A patent/DE3630579C2/en not_active Expired - Lifetime
-
1987
- 1987-09-04 US US07/093,262 patent/US4815898A/en not_active Expired - Lifetime
- 1987-09-07 AU AU78112/87A patent/AU591424B2/en not_active Ceased
- 1987-09-09 FR FR878712515A patent/FR2603655B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2603655A1 (en) | 1988-03-11 |
DE3630579A1 (en) | 1988-03-10 |
US4815898A (en) | 1989-03-28 |
AU591424B2 (en) | 1989-11-30 |
DE3630579C2 (en) | 1994-07-14 |
FR2603655B1 (en) | 1989-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU7931687A (en) | Roof mounting | |
AU591007B2 (en) | 3-aryloxy-3-substituted propanamines | |
AU7310987A (en) | 1-aralkyl-4-cyano-pyrazoles | |
AU587910B2 (en) | Roof system | |
AU593093B2 (en) | Radio-direction-finding | |
AU7024087A (en) | Groundsheet | |
AU7553887A (en) | 7-acyloxy-6-aminoacyloxypolyoxylabdanes | |
AU6925587A (en) | Naphthothiazepinones | |
AU7372487A (en) | Fire-lighters | |
AU6628986A (en) | Tots-in-tandem | |
AU5988990A (en) | 3-alkoxy-2-aminopropylamides | |
AU591424B2 (en) | Roof supports | |
AU8207287A (en) | Renin-inhibitors III | |
AU6876687A (en) | Theft-deterring label-holders | |
AU626472B2 (en) | 1-n-dodecylazacycloheptane-2-thione | |
AU579047B2 (en) | Pyridopyrimidinediones | |
AU7182187A (en) | 3-carbamoyl-4-hydroxy-coumarins | |
AU7472587A (en) | Mine roof support | |
AU7244587A (en) | Opening roof | |
AU7432087A (en) | Roller-ski | |
AU6791287A (en) | Sky-light | |
AU6804587A (en) | 4-aminomethyl-fluoresceins | |
AU590444B2 (en) | Improvements in roof supports | |
AU7049387A (en) | Naphthothiazocinones | |
AU592423B2 (en) | Pyridylthio-acylanilides |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |